Chemistry 5070 · 2 Atoms, elements and compounds
2.3 Isotopes
Define isotopes, explain why they share chemical properties, use atomic/ionic symbols, and calculate relative atomic mass from isotopic abundance.
- Questions
- 47
- Years
- 2004–2026
- Multiple choice
- 31
- Written answer
- 16
- Average marks
- 3.4
Practise atoms, elements and compounds questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 1231
- Paper 2variants 02, 21, 2216
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 2 | – | 2 |
| 2023 | 3 | 1 | 4 |
| 2022 | 6 | 3 | 9 |
| 2021 | 3 | – | 3 |
| 2020 | 1 | – | 1 |
| 2019 | 2 | 3 | 5 |
| 2018 | 1 | 2 | 3 |
| 2017 | 2 | 1 | 3 |
| 2016 | 3 | – | 3 |
| 2015 | 1 | – | 1 |
| 2009 | 1 | 2 | 3 |
| 2008 | 2 | 2 | 4 |
| 2007 | 1 | – | 1 |
| 2006 | 1 | 1 | 2 |
| 2005 | – | 2 | 2 |
| 2004 | – | 1 | 1 |
